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David Birney as Officer Frank Serpico |
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Allen Garfield as The Professor |
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Burt Young as Alec Rosen |
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Tom Atkins as Lt. Tom Sullivan |
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Lane Bradbury as Carol |
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Christine Jones as Kim |
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Will Kuluva as Mr. Serpico |
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Walter McGinn as David Doyle |
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Mario Roccuzzo as Pasquale Serpico |
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Sydney Lassick as Goldman |
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Anthony Charnota as Joe Simone |
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Carl Lee as Carothers |
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Richard C. Adams as Atkins |
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Madison Arnold as Polo |
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Paulette Breen as Gina |
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Albert Henderson as Sgt. Morgan |
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Patricia Pierangeli as Rosa |
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Antony Ponzini as Dominique |
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Harry Shearer as Hippy |
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Frank Spalar as Choreographer |
| Writing | Peter Maas | Book |
| Art | Frank T. Smith | Art Direction |
| Camera | Donald M. Morgan | Director of Photography |
| Writing | Robert L. Collins | Writer |
| Sound | Elmer Bernstein | Music |
| Directing | Robert L. Collins | Director |
| Production | Emmet G. Lavery Jr. | Producer |
| Editing | Patrick Kennedy | Editor |
